Metal covered roof with deformable sealing pads



E. T. BERG May 23, 1967 METAL COVERED ROOF WITH DEFORMABLE SEALING PADS 3 Sheets-Sheet 1 Filed March 10, 1965 INVENTOR EDWARD T. BERG FIGJ y 1967 E. T. BERG 3,320,707

METAL COVERED ROOF WlTH DEFORMABLE SEALING PADS Filed March 10, 1965 3 Sheets-Sheet 2 May 23, 1967 E. T. BERG 3,320,707

METAL COVERED ROOF WITH DEFORMABLE SEALING PADS Filed March 10, 1965 3 Sheets-Sheet 3 w 6 4 7 2 2 O3 87 2 G 6 7 2 8 4 H// r 4 3% 1 /HH/ I I l I l 1 H i l I l I I 4 H 2 I United States Patent Ofiice 3,320,707 Patented May 23, 1967 3,320,707 METAL COVERED ROOF WITH DEFORMABLE SEALING PADS Edward T. Berg, 187 Fremont St., San Francisco, Calif. 94105 Filed Mar. 10, 1965, Ser. No. 438,530 9 Claims. (Cl. 52-395) ABSTRACT OF THE DISCLOSURE An arrangement for covering roofs with metal or plastic panels in a moisture-tight manner wherein inverted flanged channels are nailed to the roof through their flanges and blocks of insulating material are placed upon said flanges. The blocks are covered with dished panels and the panels have outwardly directed lips which come to lie upon the bight portions of the inverted channels. Pads of a plastic sealing material are placed into the spaces between the confronted side walls of adjacent panels upon the lips of said panels, and plates are placed upon said pads and are secured by screws through said pads to the bight portions of the channels underneath under suflicient pressure to deform the sealing pads.

The invention relates to metal-covered roofs. More particularly the present invention relates to roof structures which are covered by panels of sheet metal.

It is an object of my invention to provide a simple and inexpensive method of, and means for, constructing metalcovered roofs of the type referred to.

More particularly, it is an object of the invention to provide simple and inexpensive means for securing metal panels in a dependable and weather-tight manner to a roof structure.

Another object of the invention is to provide means for securing the metal panels to the roof structure and for covering the joints between said panels in a weathertight manner, which may readily be applied by-unskilled labor.

These and other objects of my invention will be apparent from the following description of the accompanying drawings which illustrate a preferred embodiment thereof and wherein FIGURE 1 is an exploded fragmentary, cross-sectioned perspective of two adjacent metal sheet panels showing the components employed in accordance with the invention to secure said panels to a roof in a weathertight mannet;

FIGURE 2 is a fragmentary top view of a metalcovered roof constructed in accordance with my inven-' tion, and shows on an enlarged scale a cross section of the components illustrated in FIGURE 1 in assembled condition;

FIGURE 3 is a fragmentary, sectioned perspective showing a decorative batten placed over the joint between the two panels;

FIGURE 4 is a cross section illustrating a modified embodiment of the invention intended to produce an ornamental effect; and

FIGURE 5 is a cross section illustrating the manner in which a sheet metal panel is secured along the ridge of a slanted roof adjacent a higher wall.

To cover a roof 10 with rectangular metal panels of the type referred to, inverted channels 12 of sheet metal or plastic material provided with outwardly turned flanges 14a and 14b of substantial width are placed upon the outer surface of the roof along the lines where the joints of the panels are expected to be, and are firmly secured to the roof in a suitable manner, such as by means of nails 16 driven through the flanges 14a and 14b at suitable intervals into the roof. Placed into the rectangular spaces defined by the channels 12 (FIGURE 2) so as to rest upon the flanges 14a or 14b thereof, are rectangular blocks 18 of a weather-proof and preferably sound-proof insulating material, such as for instance the material known as Fesco Board. In the embodiment of the invention illustrated in the accompanying drawing the channels 12 are of inverted U-shaped crosssectional contour. To facilitate insertion of the blocks 18 into the spaces defined by these channels, the side walls 20a and 20b of the channels are preferably arranged to converge slightly toward their bight portions 22, which is in an upward direction, as viewed in the figures.

The panels 24 with which the roof is to be covered, are of rectangular shape and are dished, i.e. their end edges are bent downwardly to form side walls 26 of limited depth, that are provided with outwardly directed horizontally disposed terminal lips 28. The depth of the downwardly directed side walls 26 is such that their horizontal terminal lips 28 are located directly above the outer surface of the bight portion 22 of the channels 22 when the blocks 18 with the panels laid thereon are placed into the spaces defined by the channels 12; and the width of said lips is such that when two adjacent blocks with the panels mounted thereon are placed into position at either side of a channel 12, the confronting edges of the two lips leave a free space of substantial width along the center of the upper surface of the bight portion of channel 12, as shown at 30.

Placed into the trough formed by the confronting side walls 26 and lips 28 of each two adjacent panels 24 is a pad 32 of a plastic, yet preferably elastic material, such as the synthetic rubber polyisobutylene. The strip should be of such size as to fill the trough between adjacent panels from the vertical side wall of the one to the vertical side wall of the other, and may be of a slightly lesser thickness than the depth of said side walls, as best shown in FIGURE 1; and after a pad has been placed into the trough, a narrow metal plate 34 of a somewhat lesser width than the space between the side walls of adjacent panels, is placed upon the pad 32 along the longitudinal center axis of the trough, and is secured by suitable means through the pad 32 to the bight portion 22 of the channel 12 under such pressure that the plastic material rises at either of the longitudinal edges of the plate to the level of the top surface of the panels 24 as shown in FIGURE 2. For this purpose the lower side edges of the plate 34 may be beveled as shown at 36, and the plate may be provided with holes 38 at suitable intervals along the longitudinal center axis thereof. After the workman has placed the pressure plate 34 in its proper position upon the pad 32, he punches apertures of appropriate size into the bight portion 22 of the channel 12 with a suitable tool that is inserted into the holes 38 in pressure plate 34 and pushed through the pad 12. Thereupon, he inserts screws 42 into the holes 38, pushes them through the pad of plastic material and engages them with the edges of the apertures in the channel 12 and tightens them until the upper surface of the pressure plate 34 is flush with the upper surface of the metal panels 24. The panels 24 and the insulating blocks 18 are now securely held upon the surface of the roof structure. Due to the fact that the pads of sealing material 32 are held by the plate 34 under pressure against the side walls 26 of adjacent panels 24, the joints between the panels are perfectly weather-tight and will remain so even at very low temperatures. On the other hand, due to the fact that the confronting edges of the lips that form the bottom of the trough, are spaced from each other a substantial distance, and due to the fact that the vertical side walls 26 of the adjacent panels are spaced from the pressure plate 34, the panels will not be subjected to any warping strains even when exposed to sun light in summer.

The described arrangement for, installing metal coverings on roofs requires a minimum of components, and all are of a simple and inexpensive construction. They may readily be installed by unskilled labor. This means a very substantial reduction in the cost of the installation. The panels 24 may be applied and secured to the blocks of insulating material 18 by a suitable adhesive in the shop rather than on location. On location all a workman has to do is to nail the channels 12 to the roof in the proper places. The metal covered blocks 18 are then dropped into the spaces defined by and between the side walls 20a and 20b of the channels. Thereupon, the pads of plastic material 32 are placed into the troughs formed by and between the side walls 26 and the lips 28 of adjacent panels, the pressure plates 34 are placed centrally upon the pads with their side edges 36 properly spaced from the vertical side walls of the panels, apertures are punched into the bight portion of the channels in the manner described hereinbefore, and the screws 42 are pushed through the holes 38 in the pressure plates 36 and the pads 32, and are engaged into the apertures in the bight portions 22 of the channels 12. Upon tightening of said screws until the pressure plates are flush with the outer surfaces of the metal panels, the installation is completed; and should any of the plastic material of the pads 32 rise above the surface of the pressure plates and the panels, it is easy to remove it by a simple scraping operation.

Another advantage of the described arrangement is that individual panels and blocks of insulating material may readily be removed and replaced, should they become defective, without dismounting or otherwise interfering with'the adjacent panels. It is merely necessary to remove the screws 42, the pressure plates 34 and the pads 32 around a defective panel, and withdraw the panel and its block of insulating material 18, while leaving the surrounding panels in their positions. T hereupon, a new panel with its block of insulating material, is placed into position, new pads of plastic material are placed into the joints around the panel and the pressure plates 34 are.

placed onto said pads and are secured to the bight portions of-the channels 12 underneath in manner described hereinbefore.

In the described arrangement for securing sheet metal panels to a roof, ornamental battens may readily be installed over the joints between the panels to enhance the appearance of the roof. For this purpose the pressure plate 34 may be provided with threaded holes 46 (FIG- URE 1) intermediately of the apertures 38 and a sheet metal strip 48 of sufficient width to extend from the rim of one to the rim of the adjacent panel'is secured to the pressure plate 34 by means of screws 50 that pass through apertures in said strip and are threadably engaged in the holes 46 in the pressure plates (FIGURE 3). Above the panel rims the edges of the strip 48 are turned upon themselves in the manner of a hair pin to form guide channels 54a and 54b; and slidably engaged in said guide channels are the outwardly directed flanges 56a and 56b of a batten 58 of sheet metal which may have the cross-sectional contour of an inverted U. In the described manner a roof constructed in accordance with my invention may easily be provided with battens to enhance its appearance, without introducing the problems as to weather-tightness that are encountered in conventional batten constructions. Due to the presence of the sealing pads 32 in the troughs formed by the side walls 26 and lips 28 of adjacent panels and due to the pressure exerted upon said pads by the plates 34, the described batten installation is completely weather-tight.

FIGURE 4 illustrates another method of improving the appearance of a roof covered with sheet metal panels in the manner of my invention. In the embodiment of .the invention illustrated in FIGURE 4, the pressure plate 60 has an effective center portion 62 that corresponds operatively to the pressure strip 34 shown in FIGURES l, 2 and 3 and is spaced from the side walls 26of the adjacent panels 24. In addition the pressure plate 60 possesses longitudinal side flanges 64a and 64b that overlie the adjacent rim areas of the panels 24. Thus, a pleasing ornamentaleflect is obtained with a minimum of additional structure and without interfering with the function and efiectiveness of the weather-tight seal between adjacent panels as established in accordance with my invention.

FIGURES illustrates the manner in which sheet metal panels may be installed along the Upper edge or ridge of a slanted roof 66 adjacent a higher wall 68. Locations of this kind are notorious areas for seepage of moisture. In the particular installation illustrated in FIGURE 5, the base channel 70 is of difierent conformation than the channels 12 employed in the embodiments of the invention illustrated in FIGURES 1, 2, 3 and 4. It has a side wall 72 provided with a laterally directed flange 74 that is secured to theroof 66 and upon which rests the block 18 of insulating material. Along the opposite edge of its top portion 76, however, the channel 70 is provided with an upwardly directed apron 78 that extends along the adjacent wall 68. The block 18 is covered with a dished panel 24 of the same construction as illustrated and described hereinbefore, whose outwardly directed lip 28 is of lesser width than, andlies upon the shoulder 76 formed between the side wall 72 and the apron 78 of the channel 70. Placed into the trough formed between the side wall 26 of the panel and the apron 78 of the channel upon the lip 28 of said panel and the exposed part of the shoulder 76 is thepad 32 of plastic sealing compound; and applied to said pad and secured through the pad 32 to the shoulder 76 of channel 70 by screws 42 is the plate 34. Said plate is secured to the shoulder 76 under such pressure that the pad of plastic material is deformed and is held in a weather-tightmanner against the side wall 26 of the panel and the apron 78 of the channel. Thus, no moisture can seep onto the roof 66 through the interstices between the panel lip 28 and the channel 70. Along the upper edge of the apron 78 seepage of moisture into the space between the wall and the apron is prevented in theconventional manner, by a flashing 80 which is supported from a reglet 82 that is built into the wall 68.-

The above described arrangements for covering a roof with metalpanels may be employed with equal effectiveness whether the roof is fiat or slanted, and it may be efifectively applied in whatever geometrical pattern may,

be chosen for the panelling. A particular advantage of the arrangement of the present inventionis that it lends itself readily to covering curved and domed roots with metal panels is a dependably weather-tight manner where conventional methods of covering roots with metal panels.

were costly and diflicult to carryout, required highly skilled labor and proved unreliable after relatively short periods of exposure to .varying weather conditions.

While I have described my invention with the aid of certain preferred embodiments thereof, it will be understood that the invention is not limited to the specific constructional details shown and described byway of ex-.

ample, which may be departed from without departing from the scope and spirit of the invention. Other modifications of the invention may readily be devised by those skilled in the art for protecting the edges of the metal panels along the ridge of a roof.

I claim:

1. Arrangement for covering roots with sheet metal panels comprising a channel having a shoulder and a flange for attachment to the roof, a block. of insulating material having a bottom surface placed upon said flange and a dished sheet metal panel arranged upon its top surface, theside wall of said dished panel having an outwardly turned lip arranged to overlie said shoulder,-a pad of a deformable sealing material arranged upon said lip and said shoulder, a plate placed upon said pad and means for securing said plate to said shoulder.

2. Arrangement for covering roofs with sheet metal panels in a weather proof manner comprising a channel having a shoulder and a flange for attachment to the roof; a block of insulating material having a bottom surface placed upon said flange and a dished sheet metal panel arranged upon and secured to its top surface, the side wall of said dished panel having an outwardly turned lip arranged to overlie said shoulder; a pad of deformable sealing material arranged upon said lip and said shoulder, a plate placed upon said pad and means for securing said plate to said shoulder under pressure adapted to deform said pad.

3. Arrangement for covering roofs with sheet metal panels in a weather proof manner comprising a channel having a shoulder and a flange for attachment to the roof; a block of insulating material having a bottom surface placed upon said flange and a dished sheet metal panel arranged upon and secured to its top surface, the side wall of said dished panel having an outwardly turned lip arranged to overlie, and being of lesser width than, said shoulder; a pad of a deformable sealing material arranged upon said lip and said shoulder, a plate placed upon said pad in a position spaced from the adjacent side wall of said panel, and means for securing said plate to said shoulder under pressure adapted to deform said pad.

4. Arrangement for covering a roof comprising an inverted channel having outwardly directed flanges formed along the edges thereof for placement upon the outer surface of the roof, dished metal panels having side walls possessing outwardly turned lips located above said channel and being of such width as to leave a gap between their confronting edges, a pad of a sealing material in the space defined by the confronting side Walls and lips of said panels, a plate placed upon said pad, and means for securing said plate to said channel.

5. Arrangement for covering a roof comprising an inverted channel having outwardly directed flanges formed along the edges thereof for placement upon the outer surface of the roof, dished metal panels having side walls possessing outwardly turned lips located above said channel and being of such width as to leave a gap between their confronting edges, a pad of a deformable sealing material in the space defined by the confronting side walls and lips of said anels, a plate of lesser width than the distance between the confronting side walls of said panels placed upon said pad, and means for securing said plate to said channel under pressure adapted to deform said pad.

6. Arrangement for covering a roof comprising an inverted channel having a bight portion, side walls and outwardly directed flanges formed along the edges thereof, blocks of an insulating material having dished metal panels engaged over and having their bottom surfaces supported upon said flanges adjacent said sidewalls, the sidewalls of said panels having outwardly turned lips located directly above the bight portion of said channel and being of such Width as to leave a gap between their confronting edges, a pad of a deformable sealing material provided in the space defined by the confronting side walls and the lips of said panels, a plate of lesser width than the distance between the confronting side walls of said panels and means for adjustably securing said plate to said channel under pressure adapted to deform said pad.

7. Arrangement for covering a roof comprising an inverted channel having a bight portion, diverging side walls and outwardly directed flanges formed along the edges thereof, blocks of an insulating material having dished metal panels engaged over and secured to their top surfaces and having their bottom surfaces supported upon said flanges adjacent said side walls, the side walls of said panels having outwardly turned lips located directly above the bight portion of said channel and being of such width as to leave a gap between their confronting edges, a pad of a deformable sealing material provided in the space defined by the confronting side Walls and lips of said panels, a plate of lesser width than the distance between the confronting side walls of said panels and having centrally located apertures arranged upon said pad, and screw means engaging the apertures in said plate, passing through the gap between said lips and through said pad, and engaged in the bight ortion of said channel for adjustably securing the plate to said channel under pressure adapted to deform said pad.

8. Arrangement for covering a roof comprising an inverted channel having a bight portion, side walls and outwardly directed flanges formed along the edges thereof, blocks of an insulating material having dished metal panels engaged over and secured to their top surfaces and having their bottom surfaces supported upon said flanges adjacent said side walls, the side walls of said panels having outwardly turned lips located directly above the bight portion of said channel and being of such width as to leave a gap between ther confornting edges, a pad of a deformable sealing material provided in the space defined by the confronting side Walls and lips of said panels, a plate having a lower portion of lesser width than the distance between the confronting side walls of said panels placed upon said pad and an upper portion forming flanges adapted to overlie the rim areas of the two panels, and means for securing the plate to said channel under pressure adapted to deform said pad.

9. Arrangement for covering a roof comprising an inverted channel having outwardly directed flanges formed along the edges thereof for placement upon the outer surface of the roof, blocks of insulating material having dished metal panels engaged over their top surfaces and having their bottom surfaces supported upon said flanges, said dished metal panels having side walls possessing outwardly turned lips located above said channel and being of such width as to leave a gap between their confronting edges, a pad of a sealing material in the space defined by the confronting side walls and lips of said panels, a plate of lesser width than the distance between the confronting side walls of said panels placed upon said pad, means for securing said plate to said channel, an inverted channel of a size adapted to span the space between the adjacent panels, and means for securing said channel to said plate.

References Cited by the Examiner UNITED STATES PATENTS References Cited by the Applicant UNITED STATES PATENTS 2,857,861 10/1958 Trostle.

JOHN Primary Examiner,

Patent No. 3,520,707 Dated y 1970 Inventor(s) John C. stelnberg et a1.

It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:

Column 8, claim 9 line 75 "methylglucur0noxy1ans" should read methylglucuronorylans Signed and sealed this 24th day of November 1970 (SEAL) Attest:

EDWARD M. FLETCHER,JR. WILLIAM E. SCHUYLER, JR. Attesting Officer Commissioner of Patents FORM PO-l050 (10-69) USCOMM DC wanhpsg fl u.s sovtnnntm nmmm; OFFICE: 190 o-ut-su 

9. ARRANGEMENT FOR COVERING A ROOF COMPRISING AN INVERTED CHANNEL HAVING OUTWARDLY DIRECTED FLANGES FORMED ALONG THE EDGES THEREOF FOR PLACEMENT UPON THE OUTER SURFACE OF THE ROOF, BLOCKS OF INSULATING MATERIAL HAVING DISHED METAL PANELS ENGAGED OVER THEIR TOP SURFACES AND HAVING THEIR BOTTOM SURFACES SUPPORTED UPON SAID FLANGES, SAID DISHED METAL PANELS HAVING SIDE WALLS POSSESSING OUTWARDLY TURNED LIPS LOCATED ABOVE SAID CHANNEL AND BEING OF SUCH WIDTH AS TO LEAVE A GAP BETWEEN THEIR CONFRONTING EDGES, A PAD OF A SEALING MATERIAL IN THE SPACE DEFINED BY THE CONFRONTING SIDE WALLS AND LIPS OF SAID PANELS, A PLATE OF LESSER WIDTH THAN THE DISTANCE BETWEEN THE CONFRONTING SIDE WALLS OF SAID PANELS PLACED UPON SAID PAD, MEANS FOR SECURING SAID PLATE TO SAID CHANNEL, AN INVERTED CHANNEL OF A SIZE ADAPTED TO SPAN THE SPACE BETWEEN THE ADJACENT PANELS, AND MEANS FOR SECURING SAID CHANNEL TO SAID PLATE. 